ScrollBar没有出现- BootStrap

Question

我正在用BootStrap构建一个网站，我的卷轴完全消失了。我现在不能上下滚动。为什么会这样呢？我已经试过溢出，溢出，但我不明白我做错了什么。

HTML

    <!-- Wrap all page content here -->
<div id="wrap">

  <!-- Fixed navbar -->
  <div class="navbar navbar-default navbar-fixed-top">
    <div class="container">
      <div class="navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>
        <a class="navbar-brand" href="#">Sugoi!</a>
      </div>
      <div class="collapse navbar-collapse">
        <ul class="nav navbar-nav">
          <li class="Anime"><a href="#Anime">Anime</a></li>
          <li class="Manga"><a href="#manga">Manga</a></li>
          <li class="Jogos"><a href="#Jogos">Jogos</a></li>
          <li class="Opiniao"><a href="#Opiniao">Opinião</a></li>
          <li class="Outros">
            <a href="#" class="dropdown-toggle" data-toggle="dropdown">Outros <b class="caret"></b></a>
            <ul class="dropdown-menu">
              <li><a href="#">AMV</a></li>
              <li><a href="#">Cosplay</a></li>
              <li><a href="#">Passatempos</a></li>
            </ul>
        </li></ul>
            <ul class="pull-right nav navbar-nav">
          <li><a href="#about">Sobre</a></li>
          <li><a href="#contact">Contacto</a></li>
        </ul>
      </div>
    </div>



  <!-- Begin page content -->
  <div class="container">
    <div class="page-header">
      <h1>Sugoi!</h1>
      <div class="jumbotron">
        <div class="container">
        <a href="http://google.com"><h1>Persona 4 - The Animation</h1>
          <p>Sabe mais!</p></a>
      </div>
      </div>
    </div>
    <p class="lead">Pin a fixed-height footer to the bottom of the viewport in desktop browsers with this custom HTML and CSS. A fixed navbar has been added within <code>#wrap</code> with <code>padding-top: 60px;</code> on the <code>.container</code>.</p>
    <p>Back to <a href="../sticky-footer">the default sticky footer</a> minus the navbar.</p>
  </div>
</div>

 <div id="footer">
  <div class="container">
    <p class="text-muted credit">Example courtesy <a href="http://martinbean.co.uk">Martin Bean</a> and <a href="http://ryanfait.com/sticky-footer/">Ryan Fait</a>.</p>
  </div>
</div>
</div>

CSS

    /* Sticky footer styles
-------------------------------------------------- */

html,
body {
  height: 100%;
  /* The html and body elements cannot have any padding or margin. */
}

/* Wrapper for page content to push down footer */
#wrap {
  min-height: 100%;
  height: auto !important;
  height: 100%;
  /* Negative indent footer by its height */
  margin: 0 auto -60px;
  /* Pad bottom by footer height */
  padding: 0 0 60px;
}

/* Set the fixed height of the footer here */
#footer {
  height: 60px;
  background-color: #f5f5f5;
}


/* Custom page CSS
-------------------------------------------------- */
/* Not required for template or sticky footer method. */

#wrap > .container {
  padding: 60px 15px 0;
}
.container .credit {
  margin: 20px 0;
}

#footer > .container {
  padding-left: 15px;
  padding-right: 15px;
}

code {
  font-size: 80%;
}

.jumbotron {
    background-image:url('http://tomodom.com/wp-content/uploads/2013/07/Persona4Golden_Hero.jpg');
    height:400px
  }

Answer 1

具有固定位置"“的Div直到页面内容之后才会关闭，页面内容位于div之前，id为页脚。相反，它应该在导航部分的末尾结束。

复制这个。

<!-- Wrap all page content here -->
<div id="wrap">

  <!-- Fixed navbar -->
  <div class="navbar navbar-default navbar-fixed-top">
    <div class="container">
      <div class="navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>
        <a class="navbar-brand" href="#">Sugoi!</a>
      </div>
      <div class="collapse navbar-collapse">
        <ul class="nav navbar-nav">
          <li class="Anime"><a href="#Anime">Anime</a></li>
          <li class="Manga"><a href="#manga">Manga</a></li>
          <li class="Jogos"><a href="#Jogos">Jogos</a></li>
          <li class="Opiniao"><a href="#Opiniao">Opinião</a></li>
          <li class="Outros">
            <a href="#" class="dropdown-toggle" data-toggle="dropdown">Outros <b class="caret"></b></a>
            <ul class="dropdown-menu">
              <li><a href="#">AMV</a></li>
              <li><a href="#">Cosplay</a></li>
              <li><a href="#">Passatempos</a></li>
            </ul>
        </li></ul>
            <ul class="pull-right nav navbar-nav">
          <li><a href="#about">Sobre</a></li>
          <li><a href="#contact">Contacto</a></li>
        </ul>
      </div>
    </div>
  </div>



  <!-- Begin page content -->
  <div class="container">
    <div class="page-header">
      <h1>Sugoi!</h1>
      <div class="jumbotron">
        <div class="container">
        <a href="http://google.com"><h1>Persona 4 - The Animation</h1>
          <p>Sabe mais!</p></a>
      </div>
      </div>
    </div>
    <p class="lead">Pin a fixed-height footer to the bottom of the viewport in desktop browsers with this custom HTML and CSS. A fixed navbar has been added within <code>#wrap</code> with <code>padding-top: 60px;</code> on the <code>.container</code>.</p>
    <p>Back to <a href="../sticky-footer">the default sticky footer</a> minus the navbar.</p>
  </div>
</div>

 <div id="footer">
  <div class="container">
    <p class="text-muted credit">Example courtesy <a href="http://martinbean.co.uk">Martin Bean</a> and <a href="http://ryanfait.com/sticky-footer/">Ryan Fait</a>.</p>
  </div>
</div>